Watch List notes:

L. Calpurnius Piso L.f. L.n. Frugi, Denarius, Rome, 90 BC; AR (g 3,96; mm 20; h 12); Laureate head of Apollo r.; behind, control numeral, Rv. Horseman galloping r., holding palm branch; above, control numeral; below, L PISO FRVGI / ROMA in monogram. Crawford 340/1; Calpurnia 11; Sydenham 661.
Ancient die break on obverse, extremely fine.